Jinquan's R25 thread drilling coupling sleeves ensure the ends touch for efficient energy transmission because of special & advanced heat treatment technology, suitable for model powerful top hammers and drifter from Atlas Copco, Sandvik, Furukawa and Boart Longyear etc.
(1) Name: R25 coupling sleeves.
(2) Length: 140mm-235mm.
(3) Type: R25, R28, R32, R38, T38, T45, T51.
(4) Type: full-bridge, semi-bridge, same diameter etc.